Question 5

Write the following sets in the roaster form : w−2

• (i)D = {t | t3 = t, t ∈ R}
• (ii)E = {w | = 3 , w ∈ R} w+3
• (iii)F = {x | x4 – 5x2 + 6 = 0, x ∈ R}